| Multiple subscription Problem [message #1797528] |
Thu, 01 November 2018 08:22 |
 vivek kumar
Messages: 6
Registered: October 2018 |
Junior Member |
|
|
//.............If anybody can write some demo code for multiple subscriptions & publish.
void connect()
{
char hostname[] = "broker.hivemq.com";
int port = 1883;
Serial.print("Connecting to ");
Serial.print(hostname);
Serial.print(":");
Serial.println(port);
int rc = ipstack.connect(hostname, port);
if (rc != 1)
{
Serial.print("rc from TCP connect is ");
Serial.println(rc);
}
Serial.println("MQTT connecting");
MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
data.MQTTVersion = 3;
data.clientID.cstring = (char*)topicArr[0];
rc = client.connect(data);
if (rc != 0)
{
Serial.print("rc from MQTT connect is ");
Serial.println(rc);
}
Serial.println("MQTT connected");
//..........................................THIS IS I AM WRITING DUE TO WHICH rc = 2 GETTING...................//
rc = client.subscribe(sub[0], MQTT::QOS2, messageArrived);
if (rc != 0)
{
Serial.print("rc from MQTT subscribe is ");
Serial.println(sub[0]);
Serial.println(rc);
}
rc = client.subscribe(sub[1], MQTT::QOS2, messageArrived);
if (rc != 0)
{
Serial.print("rc from MQTT subscribe is ");
Serial.println(sub[1]);
Serial.println(rc);
}
Serial.println("MQTT subscribed");
}
|
|
|
Powered by
FUDForum. Page generated in 0.03408 seconds
] 
Search
Help
Register
Login
Home
